+++ /dev/null
-/* crypto/asn1/x_crl.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
-
-#include <stdio.h>
-#include "cryptlib.h"
-#include "asn1_locl.h"
-#include <openssl/asn1t.h>
-#include <openssl/x509.h>
-#include <openssl/x509v3.h>
-
-static int X509_REVOKED_cmp(const X509_REVOKED * const *a,
- const X509_REVOKED * const *b);
-static void setup_idp(X509_CRL *crl, ISSUING_DIST_POINT *idp);
-
-ASN1_SEQUENCE(X509_REVOKED) = {
- ASN1_SIMPLE(X509_REVOKED,serialNumber, ASN1_INTEGER),
- ASN1_SIMPLE(X509_REVOKED,revocationDate, ASN1_TIME),
- ASN1_SEQUENCE_OF_OPT(X509_REVOKED,extensions, X509_EXTENSION)
-} ASN1_SEQUENCE_END(X509_REVOKED)
-
-static int def_crl_verify(X509_CRL *crl, EVP_PKEY *r);
-static int def_crl_lookup(X509_CRL *crl,
- X509_REVOKED **ret, ASN1_INTEGER *serial, X509_NAME *issuer);
-
-static X509_CRL_METHOD int_crl_meth =
- {
- 0,
- 0,0,
- def_crl_lookup,
- def_crl_verify
- };
-
-static const X509_CRL_METHOD *default_crl_method = &int_crl_meth;
-
-/* The X509_CRL_INFO structure needs a bit of customisation.
- * Since we cache the original encoding the signature wont be affected by
- * reordering of the revoked field.
- */
-static int crl_inf_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
- void *exarg)
-{
- X509_CRL_INFO *a = (X509_CRL_INFO *)*pval;
-
- if(!a || !a->revoked) return 1;
- switch(operation) {
- /* Just set cmp function here. We don't sort because that
- * would affect the output of X509_CRL_print().
- */
- case ASN1_OP_D2I_POST:
- (void)sk_X509_REVOKED_set_cmp_func(a->revoked,X509_REVOKED_cmp);
- break;
- }
- return 1;
-}
-
-
-ASN1_SEQUENCE_enc(X509_CRL_INFO, enc, crl_inf_cb) = {
- ASN1_OPT(X509_CRL_INFO, version, ASN1_INTEGER),
- ASN1_SIMPLE(X509_CRL_INFO, sig_alg, X509_ALGOR),
- ASN1_SIMPLE(X509_CRL_INFO, issuer, X509_NAME),
- ASN1_SIMPLE(X509_CRL_INFO, lastUpdate, ASN1_TIME),
- ASN1_OPT(X509_CRL_INFO, nextUpdate, ASN1_TIME),
- ASN1_SEQUENCE_OF_OPT(X509_CRL_INFO, revoked, X509_REVOKED),
- ASN1_EXP_SEQUENCE_OF_OPT(X509_CRL_INFO, extensions, X509_EXTENSION, 0)
-} ASN1_SEQUENCE_END_enc(X509_CRL_INFO, X509_CRL_INFO)
-
-/* Set CRL entry issuer according to CRL certificate issuer extension.
- * Check for unhandled critical CRL entry extensions.
- */
-
-static int crl_set_issuers(X509_CRL *crl)
- {
-
- int i, j;
- GENERAL_NAMES *gens, *gtmp;
- STACK_OF(X509_REVOKED) *revoked;
-
- revoked = X509_CRL_get_REVOKED(crl);
-
- gens = NULL;
- for (i = 0; i < sk_X509_REVOKED_num(revoked); i++)
- {
- X509_REVOKED *rev = sk_X509_REVOKED_value(revoked, i);
- STACK_OF(X509_EXTENSION) *exts;
- ASN1_ENUMERATED *reason;
- X509_EXTENSION *ext;
- gtmp = X509_REVOKED_get_ext_d2i(rev,
- NID_certificate_issuer,
- &j, NULL);
- if (!gtmp && (j != -1))
- {
- crl->flags |= EXFLAG_INVALID;
- return 1;
- }
-
- if (gtmp)
- {
- gens = gtmp;
- if (!crl->issuers)
- {
- crl->issuers = sk_GENERAL_NAMES_new_null();
- if (!crl->issuers)
- return 0;
- }
- if (!sk_GENERAL_NAMES_push(crl->issuers, gtmp))
- return 0;
- }
- rev->issuer = gens;
-
- reason = X509_REVOKED_get_ext_d2i(rev, NID_crl_reason,
- &j, NULL);
- if (!reason && (j != -1))
- {
- crl->flags |= EXFLAG_INVALID;
- return 1;
- }
-
- if (reason)
- {
- rev->reason = ASN1_ENUMERATED_get(reason);
- ASN1_ENUMERATED_free(reason);
- }
- else
- rev->reason = CRL_REASON_NONE;
-
- /* Check for critical CRL entry extensions */
-
- exts = rev->extensions;
-
- for (j = 0; j < sk_X509_EXTENSION_num(exts); j++)
- {
- ext = sk_X509_EXTENSION_value(exts, j);
- if (ext->critical > 0)
- {
- if (OBJ_obj2nid(ext->object) ==
- NID_certificate_issuer)
- continue;
- crl->flags |= EXFLAG_CRITICAL;
- break;
- }
- }
-
-
- }
-
- return 1;
-
- }
-
-/* The X509_CRL structure needs a bit of customisation. Cache some extensions
- * and hash of the whole CRL.
- */
-static int crl_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
- void *exarg)
- {
- X509_CRL *crl = (X509_CRL *)*pval;
- STACK_OF(X509_EXTENSION) *exts;
- X509_EXTENSION *ext;
- int idx;
-
- switch(operation)
- {
- case ASN1_OP_NEW_POST:
- crl->idp = NULL;
- crl->akid = NULL;
- crl->flags = 0;
- crl->idp_flags = 0;
- crl->idp_reasons = CRLDP_ALL_REASONS;
- crl->meth = default_crl_method;
- crl->meth_data = NULL;
- crl->issuers = NULL;
- crl->crl_number = NULL;
- crl->base_crl_number = NULL;
- break;
-
- case ASN1_OP_D2I_POST:
-#ifndef OPENSSL_NO_SHA
- X509_CRL_digest(crl, EVP_sha1(), crl->sha1_hash, NULL);
-#endif
- crl->idp = X509_CRL_get_ext_d2i(crl,
- NID_issuing_distribution_point, NULL, NULL);
- if (crl->idp)
- setup_idp(crl, crl->idp);
-
- crl->akid = X509_CRL_get_ext_d2i(crl,
- NID_authority_key_identifier, NULL, NULL);
-
- crl->crl_number = X509_CRL_get_ext_d2i(crl,
- NID_crl_number, NULL, NULL);
-
- crl->base_crl_number = X509_CRL_get_ext_d2i(crl,
- NID_delta_crl, NULL, NULL);
- /* Delta CRLs must have CRL number */
- if (crl->base_crl_number && !crl->crl_number)
- crl->flags |= EXFLAG_INVALID;
-
- /* See if we have any unhandled critical CRL extensions and
- * indicate this in a flag. We only currently handle IDP so
- * anything else critical sets the flag.
- *
- * This code accesses the X509_CRL structure directly:
- * applications shouldn't do this.
- */
-
- exts = crl->crl->extensions;
-
- for (idx = 0; idx < sk_X509_EXTENSION_num(exts); idx++)
- {
- int nid;
- ext = sk_X509_EXTENSION_value(exts, idx);
- nid = OBJ_obj2nid(ext->object);
- if (nid == NID_freshest_crl)
- crl->flags |= EXFLAG_FRESHEST;
- if (ext->critical > 0)
- {
- /* We handle IDP and deltas */
- if ((nid == NID_issuing_distribution_point)
- || (nid == NID_authority_key_identifier)
- || (nid == NID_delta_crl))
- break;;
- crl->flags |= EXFLAG_CRITICAL;
- break;
- }
- }
-
-
- if (!crl_set_issuers(crl))
- return 0;
-
- if (crl->meth->crl_init)
- {
- if (crl->meth->crl_init(crl) == 0)
- return 0;
- }
- break;
-
- case ASN1_OP_FREE_POST:
- if (crl->meth->crl_free)
- {
- if (!crl->meth->crl_free(crl))
- return 0;
- }
- if (crl->akid)
- AUTHORITY_KEYID_free(crl->akid);
- if (crl->idp)
- ISSUING_DIST_POINT_free(crl->idp);
- ASN1_INTEGER_free(crl->crl_number);
- ASN1_INTEGER_free(crl->base_crl_number);
- sk_GENERAL_NAMES_pop_free(crl->issuers, GENERAL_NAMES_free);
- break;
- }
- return 1;
- }
-
-/* Convert IDP into a more convenient form */
-
-static void setup_idp(X509_CRL *crl, ISSUING_DIST_POINT *idp)
- {
- int idp_only = 0;
- /* Set various flags according to IDP */
- crl->idp_flags |= IDP_PRESENT;
- if (idp->onlyuser > 0)
- {
- idp_only++;
- crl->idp_flags |= IDP_ONLYUSER;
- }
- if (idp->onlyCA > 0)
- {
- idp_only++;
- crl->idp_flags |= IDP_ONLYCA;
- }
- if (idp->onlyattr > 0)
- {
- idp_only++;
- crl->idp_flags |= IDP_ONLYATTR;
- }
-
- if (idp_only > 1)
- crl->idp_flags |= IDP_INVALID;
-
- if (idp->indirectCRL > 0)
- crl->idp_flags |= IDP_INDIRECT;
-
- if (idp->onlysomereasons)
- {
- crl->idp_flags |= IDP_REASONS;
- if (idp->onlysomereasons->length > 0)
- crl->idp_reasons = idp->onlysomereasons->data[0];
- if (idp->onlysomereasons->length > 1)
- crl->idp_reasons |=
- (idp->onlysomereasons->data[1] << 8);
- crl->idp_reasons &= CRLDP_ALL_REASONS;
- }
-
- DIST_POINT_set_dpname(idp->distpoint, X509_CRL_get_issuer(crl));
- }
-
-ASN1_SEQUENCE_ref(X509_CRL, crl_cb, CRYPTO_LOCK_X509_CRL) = {
- ASN1_SIMPLE(X509_CRL, crl, X509_CRL_INFO),
- ASN1_SIMPLE(X509_CRL, sig_alg, X509_ALGOR),
- ASN1_SIMPLE(X509_CRL, signature, ASN1_BIT_STRING)
-} ASN1_SEQUENCE_END_ref(X509_CRL, X509_CRL)
-
-IMPLEMENT_ASN1_FUNCTIONS(X509_REVOKED)
-IMPLEMENT_ASN1_FUNCTIONS(X509_CRL_INFO)
-IMPLEMENT_ASN1_FUNCTIONS(X509_CRL)
-IMPLEMENT_ASN1_DUP_FUNCTION(X509_CRL)
-
-static int X509_REVOKED_cmp(const X509_REVOKED * const *a,
- const X509_REVOKED * const *b)
- {
- return(ASN1_STRING_cmp(
- (ASN1_STRING *)(*a)->serialNumber,
- (ASN1_STRING *)(*b)->serialNumber));
- }
-
-int X509_CRL_add0_revoked(X509_CRL *crl, X509_REVOKED *rev)
-{
- X509_CRL_INFO *inf;
- inf = crl->crl;
- if(!inf->revoked)
- inf->revoked = sk_X509_REVOKED_new(X509_REVOKED_cmp);
- if(!inf->revoked || !sk_X509_REVOKED_push(inf->revoked, rev)) {
- ASN1err(ASN1_F_X509_CRL_ADD0_REVOKED, ERR_R_MALLOC_FAILURE);
- return 0;
- }
- inf->enc.modified = 1;
- return 1;
-}
-
-int X509_CRL_verify(X509_CRL *crl, EVP_PKEY *r)
- {
- if (crl->meth->crl_verify)
- return crl->meth->crl_verify(crl, r);
- return 0;
- }
-
-int X509_CRL_get0_by_serial(X509_CRL *crl,
- X509_REVOKED **ret, ASN1_INTEGER *serial)
- {
- if (crl->meth->crl_lookup)
- return crl->meth->crl_lookup(crl, ret, serial, NULL);
- return 0;
- }
-
-int X509_CRL_get0_by_cert(X509_CRL *crl, X509_REVOKED **ret, X509 *x)
- {
- if (crl->meth->crl_lookup)
- return crl->meth->crl_lookup(crl, ret,
- X509_get_serialNumber(x),
- X509_get_issuer_name(x));
- return 0;
- }
-
-static int def_crl_verify(X509_CRL *crl, EVP_PKEY *r)
- {
- return(ASN1_item_verify(ASN1_ITEM_rptr(X509_CRL_INFO),
- crl->sig_alg, crl->signature,crl->crl,r));
- }
-
-static int crl_revoked_issuer_match(X509_CRL *crl, X509_NAME *nm,
- X509_REVOKED *rev)
- {
- int i;
-
- if (!rev->issuer)
- {
- if (!nm)
- return 1;
- if (!X509_NAME_cmp(nm, X509_CRL_get_issuer(crl)))
- return 1;
- return 0;
- }
-
- if (!nm)
- nm = X509_CRL_get_issuer(crl);
-
- for (i = 0; i < sk_GENERAL_NAME_num(rev->issuer); i++)
- {
- GENERAL_NAME *gen = sk_GENERAL_NAME_value(rev->issuer, i);
- if (gen->type != GEN_DIRNAME)
- continue;
- if (!X509_NAME_cmp(nm, gen->d.directoryName))
- return 1;
- }
- return 0;
-
- }
-
-static int def_crl_lookup(X509_CRL *crl,
- X509_REVOKED **ret, ASN1_INTEGER *serial, X509_NAME *issuer)
- {
- X509_REVOKED rtmp, *rev;
- int idx;
- rtmp.serialNumber = serial;
- /* Sort revoked into serial number order if not already sorted.
- * Do this under a lock to avoid race condition.
- */
- if (!sk_X509_REVOKED_is_sorted(crl->crl->revoked))
- {
- CRYPTO_w_lock(CRYPTO_LOCK_X509_CRL);
- sk_X509_REVOKED_sort(crl->crl->revoked);
- CRYPTO_w_unlock(CRYPTO_LOCK_X509_CRL);
- }
- idx = sk_X509_REVOKED_find(crl->crl->revoked, &rtmp);
- if(idx < 0)
- return 0;
- /* Need to look for matching name */
- for(;idx < sk_X509_REVOKED_num(crl->crl->revoked); idx++)
- {
- rev = sk_X509_REVOKED_value(crl->crl->revoked, idx);
- if (ASN1_INTEGER_cmp(rev->serialNumber, serial))
- return 0;
- if (crl_revoked_issuer_match(crl, issuer, rev))
- {
- if (ret)
- *ret = rev;
- if (rev->reason == CRL_REASON_REMOVE_FROM_CRL)
- return 2;
- return 1;
- }
- }
- return 0;
- }
-
-void X509_CRL_set_default_method(const X509_CRL_METHOD *meth)
- {
- if (meth == NULL)
- default_crl_method = &int_crl_meth;
- else
- default_crl_method = meth;
- }
-
-X509_CRL_METHOD *X509_CRL_METHOD_new(
- int (*crl_init)(X509_CRL *crl),
- int (*crl_free)(X509_CRL *crl),
- int (*crl_lookup)(X509_CRL *crl, X509_REVOKED **ret,
- ASN1_INTEGER *ser, X509_NAME *issuer),
- int (*crl_verify)(X509_CRL *crl, EVP_PKEY *pk))
- {
- X509_CRL_METHOD *m;
- m = OPENSSL_malloc(sizeof(X509_CRL_METHOD));
- if (!m)
- return NULL;
- m->crl_init = crl_init;
- m->crl_free = crl_free;
- m->crl_lookup = crl_lookup;
- m->crl_verify = crl_verify;
- m->flags = X509_CRL_METHOD_DYNAMIC;
- return m;
- }
-
-void X509_CRL_METHOD_free(X509_CRL_METHOD *m)
- {
- if (!(m->flags & X509_CRL_METHOD_DYNAMIC))
- return;
- OPENSSL_free(m);
- }
-
-void X509_CRL_set_meth_data(X509_CRL *crl, void *dat)
- {
- crl->meth_data = dat;
- }
-
-void *X509_CRL_get_meth_data(X509_CRL *crl)
- {
- return crl->meth_data;
- }
-
-IMPLEMENT_STACK_OF(X509_REVOKED)
-IMPLEMENT_ASN1_SET_OF(X509_REVOKED)
-IMPLEMENT_STACK_OF(X509_CRL)
-IMPLEMENT_ASN1_SET_OF(X509_CRL)
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